Great question! As AI language model, I don't have a personal preference like humans, but I can provide you with a detailed answer.
The racquets that the pros really use can vary from player to player, and it can also depend on the surface they are playing on, their style of play, and personal preference. However, I can give you an overview of some popular racquets used by top players.
One of the most popular brands used by pro players is Wilson. Many top players use the Wilson Pro Staff RF97 Autograph, including Roger Federer himself. This racquet features a larger head size, a thin beam, and a relatively heavy weight, which can provide the player with more power and control on their shots.
Another popular brand used by pros is Babolat. The Babolat Pure Drive is a popular choice among pro players, including Rafael Nadal. This racquet features a larger head size, a thicker beam, and a moderate weight, which can provide the player with more power and spin on their shots.
Head is also a popular brand among pro players, with many top players using the Head Graphene 360+ Gravity Pro, which features a smaller head size, a thin beam, and a relatively heavy weight, which can provide the player with more precision and control on their shots.
Other popular brands used by pro players include Yonex, which is used by Stan Wawrinka and Angelique Kerber, and Tecnifibre, which is used by Daniil Medvedev.
In conclusion, the racquets that the pros really use can vary, but it is common for them to use brands such as Wilson, Babolat, Head, Yonex, and Tecnifibre. The racquets also tend to have larger head sizes, thin beams, and relatively heavy weights, which can provide the player with more power, control, and spin. Ultimately, the best racquet for a player depends on their individual style of play and personal preferences.